中文摘要：

汉源日词是语言学的重要研究对象,能够揭示出汉字词对日语词汇发展的影响。本文基于日本出版的《日本语源大辞典》中所收录的6000多个词语,人工录入和标注词条的年代、词性、汉字比例和与汉词词义相似度等信息建立数据库。统计得出,在词典的所有词项中,词语出现数量最多的朝代分别是奈良时代、平安时代以及江户时代。同时,词典中能写成全汉字的词占一半以上,而包含汉字的日词则占词典的九成以上。最后,从社会历史方面探讨新词产生及汉字词比例涨落的原因。

英文摘要：

The loanwords from Chinese in Japanese are always an important object of linguistics studies. Based on the data in the Japan Etymology Dictionary , this paper analyzes the time, the part of speech, the proportion of the Chinese characters and their similarity with Chinese words. The result shows that, most of the loanwords emerge in the Nara, the Heian and the Edo period. In addition, more than half of the words in the dictionary are written in Chinese characters, while more than 90% of Japanese word contains Chinese characters. It also explores the causes of the loanwords, the phenomenon of the high proportion of Chinese characters, and the phenomenon of a sharp increase or decrease from time to time.